Sanitary valve with a diaphragm

Abstract

A sanitary valve (1) for use in a fitting (2), including a valve housing (3), a main valve (4) which has a movable diaphragm (5), and a pilot valve (6), by which the main valve (4) can be actuated. The position of the diaphragm (5) can be specified by the position of a valve tappet (7) of the pilot valve (6), and a tube securing element (9) which is paired with an inlet opening (8) of the valve housing (3) is formed on the valve housing (3) and/or a mouthpiece securing element (11) or a jet regulator securing element which is paired with an outlet opening (10) of the valve housing (3) is formed on the valve housing (3) and/or the sanitary valve (1) has a clamping device (12), by which the valve housing (3) and an adjustment device part (13) can be rigidly connected together or are rigidly connected together.

The invention claimed is: 
     
       1. A sanitary valve ( 1 ) for insertion into a fitting ( 2 ), the sanitary valve comprising:
 a valve housing ( 3 ), insertable into a fitting ( 2 ), 
 a main valve ( 4 ) which has a movable diaphragm ( 5 ), 
 a pilot valve ( 6 ) by which the main valve ( 4 ) is actuatable, and 
 a valve tappet ( 7 ) by which a position of the diaphragm ( 5 ) is predefinable by a setting of the valve tappet ( 7 ) of the pilot valve ( 6 ), 
 an adjustment device part ( 13 ) and a clamping device ( 12 ) by which the valve housing ( 3 ) and the adjustment device part ( 13 ) are connected to each other; 
 wherein the main valve ( 4 ), the pilot valve ( 6 ) and valve tappet ( 7 ) are entirely housed within the valve housing ( 3 ), which comprises a portion configured as a tube securing means ( 9 ), to which a tube ( 8 ) is directly attachable and which is assigned to an inflow opening ( 8 ) of the valve housing ( 3 ) and wherein the clamping device ( 12 ) is comprised of two parts ( 22 ) which each include a coupling element ( 23 ) and a corresponding mating coupling element ( 24 ) for receiving the coupling element ( 23 ) of the other part ( 22 ), as a result of which the two parts ( 22 ) are couplable to each other. 
 
     
     
       2. The sanitary valve ( 1 ) as claimed in  claim 1 , further comprising at least one of a mouthpiece securing means ( 11 ) or a jet regulator securing means assigned to an outflow opening ( 10 ) of the valve housing ( 3 ) formed on the valve housing ( 3 ). 
     
     
       3. The sanitary valve ( 1 ) as claimed in  claim 2 , further comprising a mouthpiece secured directly on the mouthpiece securing means ( 11 ), wherein the sanitary valve ( 1 ) is adapted to be inserted in a valve-receiving space ( 20 ) of the fitting ( 2 ) and is adapted to be fixed on the fitting ( 2 ) by the mouthpiece secured on the mouthpiece securing means ( 11 ), or the sanitary valve ( 1 ) has a securing ring ( 38 ) by which the valve is adapted to be on the fitting ( 2 ). 
     
     
       4. The sanitary valve ( 1 ) as claimed in  claim 2 , further comprising a jet regulator secured directly on the jet regulator securing means, and the sanitary valve ( 1 ) is adapted to be inserted in a valve-receiving space ( 20 ) of the fitting ( 2 ) and is adapted to be fixed on the fitting ( 2 ) by the jet regulator secured on the jet regulator securing means, or a mouthpiece that is secured directly on the mouthpiece securing means ( 11 ) has a jet regulator, or a jet regulator is arranged between the mouthpiece and the outflow opening ( 10 ). 
     
     
       5. The sanitary valve ( 1 ) as claimed in  claim 4 , wherein the mouthpiece has an inner thread and the valve housing ( 3 ) at the outflow opening ( 10 ) has a corresponding outer thread ( 19 ), or the mouthpiece has an outer thread ( 19 ) and the valve housing ( 3 ) at the outflow opening ( 10 ) has a corresponding inner thread ( 32 ), or the jet regulator has an inner thread and the valve housing ( 3 ) at the outflow opening ( 10 ) has a corresponding outer thread ( 19 ), or the jet regulator has an outer thread ( 19 ) and the valve housing ( 3 ) at the outflow opening has a corresponding inner thread ( 32 ). 
     
     
       6. The sanitary valve ( 1 ) as claimed in  claim 1 , further comprising at least one of a channel ( 21 ) configured to be closed toward the fitting ( 2 ) or a pressure chamber ( 28 ) configured to be closed toward the fitting ( 2 ) formed through the valve housing ( 3 ) and the adjustment device part ( 13 ), such that there is adapted to be no contact between the fitting ( 2 ) and a liquid flowing through the sanitary valve ( 1 ). 
     
     
       7. The sanitary valve ( 1 ) as claimed in  claim 1 , wherein the clamping device ( 12 ) has two parts ( 22 ) which are connectable to each other and which, in an assembled position, form a hollow cylinder that encloses and firmly connects the valve housing ( 3 ) and the adjustment device part ( 13 ) at least in a coupling region ( 25 ). 
     
     
       8. The sanitary valve ( 1 ) as claimed in  claim 7 , wherein the clamping device ( 12 ) permits a firm connection of the valve housing ( 3 ) and of the adjustment device part ( 13 ) outside the fitting ( 2 ). 
     
     
       9. The sanitary valve ( 1 ) as claimed in  claim 1 , further comprising at least one fixing element ( 26 ) having a maximum external diameter that is configured such that the sanitary valve ( 1 ), in a state when inserted into the fitting ( 2 ), is fixed in a radial direction, with the at least one fixing element ( 26 ) being configured to bear on an inner wall ( 27 ) of a valve-receiving space ( 20 ), such that the sanitary valve ( 1 ) is adapted to be inserted into the fitting ( 2 ) or is adapted to be removable from the fitting ( 2 ) exclusively in an axial direction. 
     
     
       10. The sanitary valve ( 1 ) as claimed in  claim 9 , wherein the at least one fixing element ( 26 ) is formed by at least one of the clamping device ( 12 ) by which the valve housing ( 3 ) and an adjustment device part ( 13 ) are connected to each other or by a bearing element ( 14 ) formed or mounted on the valve housing ( 3 ) and with which the valve housing ( 3 ) adapted to bear on a through-opening ( 16 ) in a wall ( 15 ) of the fitting ( 2 ). 
     
     
       11. The sanitary valve ( 1 ) as claimed in  claim 1 , wherein the movable diaphragm ( 5 ) closes a pressure chamber ( 28 ) which is configured between the valve housing ( 3 ) and an adjustment device part ( 13 ), the pressure chamber ( 28 ) is adapted to be filled via a filling opening ( 29 ), with liquid that flows in via a valve inlet ( 30 ), and the pressure chamber ( 28 ) is configured such that a pressure builds up inside the pressure chamber ( 28 ) when a relief opening is closed. 
     
     
       12. A method of assembling the sanitary valve ( 1 ) as claimed in  claim 1  into the fitting ( 2 ) such that a direct contact between the fitting ( 2 ) and a stream of liquid is prevented, the method comprising connecting a tube ( 18 ) directly to the valve housing ( 3 ) by connecting an attachment element of the tube ( 18 ) to the tube securing means ( 9 ). 
     
     
       13. The method as claimed in  claim 12 , further comprising connecting the tube ( 18 ) to the valve housing ( 3 ) before the sanitary valve ( 1 ) is inserted into a valve-receiving space of a fitting ( 2 ). 
     
     
       14. A sanitary valve ( 1 ) for insertion into a fitting ( 2 ), the sanitary valve comprising:
 a valve housing ( 3 ), insertable into a fitting ( 2 ), 
 a main valve ( 4 ) which has a movable diaphragm ( 5 ), 
 a pilot valve ( 6 ) by which the main valve ( 4 ) is actuatable, and 
 a valve tappet ( 7 ) by which a position of the diaphragm ( 5 ) is predefinable by a setting of the valve tappet ( 7 ) of the pilot valve ( 6 ),
 wherein the main valve ( 4 ), the pilot valve ( 6 ) and valve tappet ( 7 ) are entirely housed within the valve housing ( 3 ), which comprises a portion configured as a tube securing means ( 9 ), to which a tube ( 8 ) is directly attachable and which is assigned to an inflow opening ( 8 ) of the valve housing ( 3 ), wherein the tube securing means ( 9 ) has a maximum external diameter which is smaller than a maximum external diameter of a bearing element ( 14 ) formed or mounted on the valve housing ( 3 ) and with which the valve housing ( 3 ) adapted to bear on a through-opening ( 16 ) in a wall ( 15 ) of the fitting ( 2 ), and the maximum external diameter of the tube securing means ( 9 ) is configured to be smaller than a clear internal diameter of the through-opening ( 16 ). 
 
 
     
     
       15. A sanitary valve ( 1 ) for insertion into a fitting ( 2 ), the sanitary valve comprising:
 a valve housing ( 3 ), insertable into a fitting ( 2 ), 
 a main valve ( 4 ) which has a movable diaphragm ( 5 ), 
 a pilot valve ( 6 ) by which the main valve ( 4 ) is actuatable, and 
 a valve tappet ( 7 ) by which a position of the diaphragm ( 5 ) is predefinable by a setting of the valve tappet ( 7 ) of the pilot valve ( 6 ),
 wherein the main valve ( 4 ), the pilot valve ( 6 ) and valve tappet ( 7 ) are entirely housed within the valve housing ( 3 ), which comprises a portion configured as a tube securing means ( 9 ), to which a tube ( 8 ) is directly attachable and which is assigned to an inflow opening ( 8 ) of the valve housing ( 3 ), wherein the tube securing means ( 9 ) has an outer thread ( 19 ) for attachment of a corresponding inner thread ( 32 ) of a securing sleeve ( 17 ) of the sanitary valve ( 1 ) that is adapted to be connected to a tube ( 18 ), or the tube securing means ( 9 ) has an inner thread for attachment of a corresponding outer thread ( 19 ) of a securing sleeve ( 17 ) of the sanitary valve ( 1 ) that is adapted to be connected to a tube ( 18 ), or the tube securing means ( 9 ) is configured as a securing plate with a tube receptacle.